If you need to read multiple (variable number) of sensors into Cacti, the following python script will read the sensors and format the output ready for Cacti. Be aware though that the sensor numbering is based on their serial numbers - the order will change if sensors with different serial numbers More >

Some people have been asking for some Python code that can read multiple temperature sensors.
The following code will work for up to 10 sensors (maximum allowed under the kernel driver)
#!/usr/bin/env python
from os import path, listdir, system
from time import sleep
# Borrowing More >

Some people have been having problems getting the Cacti graphs on the data logger to update correctly – they are missing graph lines and numerical outputs. I remember having similar issues when I was first messing around setting up the loggers. So to try to fix this, I went through a complete More >

A while ago I reported on progress towards a Raspberry Pi based environmental logger.

Well, it has proved to be quite popular at work (several laboratories now use them to log temperature and humidity values for around £100 each device) so I wrote up pretty much all the instructions on how to build More >